dcopobject: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On CentOS possible default full paths are:

/usr/bin/dcopobject - from package: kdelibs3

You may install the required package with command yum install {package}

Error in other languages:
dcopobject: bevel nie gevind nie
dcopobject: comandă negăsită
dcopobject: comando não encontrado
dcopobject: commande introuvable
dcopobject: command not found
dcopobject: käsku ei ole
dcopobject: không tìm thấy lệnh
dcopobject: komanda nerasta
dcopobject: Kommando nicht gefunden.
dcopobject: kommandot finns inte
dcopobject: komut yok
dcopobject: nie znaleziono polecenia
dcopobject: níor aimsíodh an t-ordú
dcopobject: no se encontró la orden
dcopobject: no s'ha trobat l'ordre
dcopobject: opdracht niet gevonden
dcopobject: parancs nem található
dcopobject: perintah tidak ditemukan
dcopobject: príkaz nenájdený
dcopobject: příkaz nenalezen
dcopobject: команда не найдена
dcopobject: командата не е открита
dcopobject: 命令找不到
dcopobject: コマンドが見つかりません